Hello Karol,
Login to admin and go to appearance > Theme Options > Color Options there you can see the ‘color skin’ option to change the theme scheme to purple.
To set the home page same like our demo just go login to the admin and go to Appearance > Customize > Advanced Options > Corporate Page Template
- Create a page with any name and set the Template to Corporate Templatefrom Page Attributes which you can find at right side.
- Now go to Appearance > Customize > Homepage Settings and set Homepage to the page that you have created just before from above step.
- Now go to Customize > Advanced Options > Corporate Page Template and set all the fields accordingly as per your need and for the testimonial just add the testimonial page id.
Also you will have the pro feature under Appearance > Theme Options and Appearance > Customize.
Thank you!